Adapter



FIG. 1 is a front perspective view of the adapter;

FIG. 2 is a rear perspective view of the adapter;

FIG. 3 is a front view of the adapter;

FIG. 4 is a rear view of the adapter;

FIG. 5 is a top end view of the adapter;

FIG. 6 is a bottom end view of the adapter;

FIG. 7 is a left side view, in elevation, of the adapter; and,

FIG. 8 is a right side view, in elevation, of the adapter. 

The ornamental design for an adapter, as shown and described. 